When a mixture of manganese dioxide, potassium hydroxide and potassium chlorate is fused, the product obtained is

Options

A. `K_(2)SO_(4)`
B. `K_(2)MNO_(3)`
C. `K_(2)MnO_(4)`
D. `KMnO_(4)`

Answer

C

Explanation

When a mixture of maganese dixoide, potassium hydroxide and potassium chlorate is fused then potassium chlorate first decomposes to give potassium chloride and oxygen gas. The formed `O_(2)` gas then reacts with `MnO_(2)` and KOH to give `K_(2)MnO_(4)`. The equations for the above reaction can be written as:
`2KCIO_(3) (s) underset(MnO_(2))overset(Delta)(to) 2KCI (s) + 3O_(2) (g)`
`2MnO_(2) 4KOH + O_(2) to 2K_(2) MnO_(4) + 2H_(2) O`